CVE-2015-6303

Name: CVE-2015-6303
Creator: NVD / NIST
Published: 2015-09-24T14:59:00.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.54%

Last modified Jun 17, 2026

CVE-2015-6303 is a vulnerability of currently unknown severity. The Cisco Spark application 2015-07-04 for mobile operating systems does not properly verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate, aka Bug IDs CSCut36742 and CSCut36844.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

The Cisco Spark application 2015-07-04 for mobile operating systems does not properly verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate, aka Bug IDs CSCut36742 and CSCut36844.

Metrics

EPSS Probability

0.54%

41.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Cisco	Spark	2015-07-04_base

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=41127Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=41127Vendor Advisory

Timeline

Published: Sep 24, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6303?

How severe is CVE-2015-6303?

Severity scoring for CVE-2015-6303 is pending analysis. The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6303?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-6303?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST